1.Each waterproof storage container is perfect for better product storage. 2.Stores conveniently in your pocket or bag for easy on-the-go. 3.Our airtight jars are made of high quality aluminum. It's extra thick to withstand knocks and drops, keeping your cargo safe even in transit. 4.The rubber O-ring of the storage jar and a screw-on lid give the bottle an excellent airtight. Keep your spices, pepper , coffee &teas or other materials more fresh and more airtight.